Hi @thomasdecamps,
Good day I hope you created the test ticket with the personal email ID. Can you open your mailbox in an incognito tab and try submitting the survey so that you are not logged in as an agent in the current browser session?
As far as I have seen, this error occurs when you submit feedback in the same browser session in which you are logged in as an agent.
Please try this to see if that does the trick for you. If not, feel free to write to support@freshdesk.com and our support buddies would be glad to help you further.
Cheers,
Keer,
Freshworks Community Team.